Your temps are fine assuming the thermometers are reasonably accurate. You are already planning on replacements I would not advise an accurite they are no better than most others on the market and a poor shape for the use. I actually recommend the cheapest probed thermometer (usually aquarium ones) you can get buy 3 or better 5 and check them against each other and use the best two. (http://cgi.ebay.ca/New-Digital-LCD-T...item415167348c)

The others can be back up. Hygrometers are all over the board I'd test the one you have. Look up hygrometer salt test and run that if it is accurate you are set if not I'd buy a better one. They don't need to be probed style just an ambient one will do. The hides will be a bit more humid than the ambient.


http://www.amazon.com/Western-Digita.../dp/B0007VWEQA

My pick, the card is metal (the one you have sometimes the needle sticks on the card) and it has a calibration screw if needed. You can spend more but this works perfectly.

Tanks can have humidity issues and bulbs promote good air flow which if your house is lower humidity it will drop it. Air flow is a good thing under rated I think. The easiest solution is to use a humid hide and you will solve the humidity issues.

Make sure your snake cannot contact the lamp or that the cage top is not super hot. 100º is fine quick contact will not burn but make sure it can't lay against the top.